When they start, senior players in their field of work laugh at them because they don't have much content. So they try to get as much as possible, trying to get as many new creators on board as they can.
Later, when they have grown enough, the senior players in the field laugh at them because they have mostly garbage content. So they try to increase the quality of their content.
The problem here is, now they accumulated a vast mass of creators who love the site, but only a fraction of them creates quality content.
They unleash a task force of moderators on them that kick out the low-quality creators, which improves quality, but bad for the morale of the whole community.
Wikipedia did this and Stackexchange does this too.
I think, instead of alienating existing creators by deleting their content, they should simply make high quality content more visible.